package cn.how2j.mybaby.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringUtils implements ApplicationContextAware{
 
	
	private static ApplicationContext applicationContext;
 
	@Override
	public void setApplicationContext(ApplicationContext applicationContext)
			throws BeansException {
		if(SpringUtils.applicationContext == null){
            SpringUtils.applicationContext = applicationContext;
        }
		
	}
 
	public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }
 
    //根据name
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }
 
    //根据类型
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }
 
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name,clazz);
    }
}